Influence of atomic ordering on the phase and structural changes in high-carbon alloys of the Fe?Al?C system

1986 ◽  
Vol 28 (7) ◽  
pp. 485-487 ◽  
Author(s):  
L. I. Lysak ◽  
A. G. Drachinskaya ◽  
V. A. Andryushchenko
Keyword(s):  
Structural Changes ◽  
Atomic Ordering ◽  
High Carbon ◽  
Phase And Structural Changes

Phase and structural changes in nitriding of iron alloyed with titanium

1971 ◽  
Vol 13 (8) ◽  
pp. 659-661
Author(s):  
A. V. Belotskii ◽  
P. V. Dukhota ◽  
V. G. Permyakov
Keyword(s):  
Structural Changes ◽  
Phase And Structural Changes

Phase and structural changes of Nd12Fe82B6 alloy during mechanical milling in both an argon and a hydrogen atmosphere

2004 ◽  
Vol 151 (1-3) ◽  
pp. 258-262 ◽  
Author(s):  
G. Shi ◽  
L.X. Hu ◽  
B. Guo ◽  
E.D. Wang ◽  
Z.R. Wang
Keyword(s):  
Mechanical Milling ◽  
Structural Changes ◽  
Hydrogen Atmosphere ◽  
Phase And Structural Changes

Phase and structural changes in superplastic Sn-Pb eutectic under external compressive stresses

2007 ◽  
Vol 104 (3) ◽  
pp. 294-300 ◽  
Author(s):  
V. F. Korshak ◽  
A. L. Samsonik
Keyword(s):  
Structural Changes ◽  
Compressive Stresses ◽  
Phase And Structural Changes

Phase, Structural and Microstructural Changes in the TiC1-x – Cr3C2 Materials

2010 ◽  
Vol 65 ◽  
pp. 112-117 ◽  
Author(s):  
Paweł Rutkowski ◽  
Ludosław Stobierski ◽  
Mirosław M. Bućko ◽  
Bartosz Handke
Keyword(s):  
Titanium Carbide ◽  
Chromium Carbide ◽  
Structural Changes ◽  
Rietveld Method ◽  
Initial Mixture ◽  
Microstructural Changes ◽  
Chromium Carbides ◽  
Variable Content ◽  
Evolution Of Microstructure ◽  
Phase And Structural Changes

The earlier studies showed that addition of different chromium carbides to nonstoichiometric fine titanium carbide improve sintering in the similar way. The phase, structural and microstructural changes for addition of various chromium carbides were also similar. In the present work the composite materials were made of various carbon quantity saturated titanium carbide (as matrix) and commercial chromium carbide Cr3C2 (as additive). The titanium carbide powders with variable content of carbon in structure were synthesized by the SHS method. The chromium carbide in quantity of 7.5 % by volume was added to the initial mixture. The influence of various stoichiometry of titanium carbide on onset temperature of sintering was examined by use of high temperature dilatometer. The phase and structural changes of examined materials during sintering were made using XRD and Rietveld method. The evolution of microstructure, versus of different stoichiometry titanium carbides, was observed by use of scanning electron microscopy.

Co-movements of financial volatilities in a changing environment

2020 ◽  
Author(s):  
Susana Martins
Keyword(s):  
Climate Change ◽  
Fossil Fuels ◽  
Structural Changes ◽  
Oil And Gas ◽  
Factor Model ◽  
Primary Energy ◽  
Global Scale ◽  
Low Carbon ◽  
High Carbon ◽  
Volatility Model

<p>Anthropogenic climate change has been attributed mainly to the excessive burning of fossil fuels and the release of carbon compounds. On average, 75% of the primary energy is still being produced by means of fossil fuels. In order to mitigate the global effects of climate change, a transition towards low-carbon economies is thus necessary. However, given current technology, this transition requires investments to shift away from high-carbon assets and so the effectiveness of changes in investment decisions depends highly on the expectations about policy change (e.g. regarding carbon pricing). The systemic implications of disruptive technological progress on the prices of carbon-intensive assets are thus compounded by the geopolitical nature of transition risk. If investors are pricing transition risk, this implies prices of high-carbon assets should all be responsive to climate-related policy news. For modelling the dynamics of volatility co-movements at the global scale, we propose an extension to the global volatility factor model of Engle and Martins (\textit{in preparation}). To allow for richer structures of the global volatility process, including dynamics, structural changes, outliers or time-varying parameters, we adapt the indicator saturation approach introduced by Hendry (1999) to the second moment and high-frequency data. In the model, climate change is interpreted as a source of structural change affecting the financial system. The new global volatility model is applied to the daily share prices of major Oil and Gas companies from different countries traded in the NYSE to avoid asynchronicity. As a proxy for climate change risk, we use the climate change news index of Engle et al. (2019). This index is a time series that captures news about long-run climate risk. In particular, we use the innovations in their negative (or bad) news index which is based on sentiment analysis.</p>

scholarly journals Phase and Structural Changes during Heat Treatment of Additive Manufactured CrFeCoNi High-Entropy Alloy

2021 ◽  
pp. 161495
Author(s):  
Yulia O. Kuzminova ◽  
Egor A. Kudryavtsev ◽  
Jae-Kyung Han ◽  
Megumi Kawasaki ◽  
Stanislav A. Evlashin
Keyword(s):  
Heat Treatment ◽  
Structural Changes ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Phase And Structural Changes

Phase and structural changes stimulated in multilayer contacts to n-GaAs by rapid thermal annealing

2003 ◽  
Vol 37 (9) ◽  
pp. 1114-1118 ◽  
Author(s):  
N. S. Boltovets ◽  
V. N. Ivanov ◽  
R. V. Konakova ◽  
P. M. Lytvyn ◽  
O. S. Lytvyn ◽  
...  
Keyword(s):  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
Structural Changes ◽  
Phase And Structural Changes

Spontaneous Dissociation of Xenon Tetroxide: Phase and Structural Changes

2011 ◽  
Vol 115 (26) ◽  
pp. 7811-7814 ◽  
Author(s):  
Vladimir Slepkov ◽  
Svetlana Kozlova ◽  
Svyatoslav Gabuda
Keyword(s):  
Structural Changes ◽  
Phase And Structural Changes

scholarly journals IMPROVING THE SURFACE STRUCTURE OF MASSIVE PARTS BY THE PLASMA METHOD

2021 ◽  
Author(s):  
I.M Kossanova.Т.Кanayev,A А.U.Аkhmedyanov,I.P. Mazur,
Keyword(s):  
Structural Changes ◽  
Surface Plasma ◽  
High Temperature Region ◽  
Heating Rates ◽  
Plasma Hardening ◽  
Fine Grained ◽  
Kinetics Of ◽  
New Phase ◽  
Phase And Structural Changes ◽  
Structural Zones

An increase in the reliability of the operation of large-sized and massive parts by plasma hardening of their surfaces is substantiated. It has been established that the formation of several structural zones of different microhardness is observed in detail along the depth of hardening, indicating the formation of a gradient-layered structure. It has been proved that at ultrafast heating rates, which occur during surface plasma hardening, phase and structural changes move to the high temperature region, changing the kinetics of the appearance and growth of new phase nuclei. In this case, fine-grained austenite is formed, which is transformed into a highly dispersed martensitic structure, which increases the strength and reliability of the surfaces of the parts.

Anomalous mass transfer and phase and structural changes in ?-Fe when acted upon with electron pulses

1994 ◽  
Vol 37 (4) ◽  
pp. 386-389 ◽  
Author(s):  
V. E. Panin ◽  
V. L. Teploukhov ◽  
L. V. Sakhnova ◽  
L. N. Ignatenko ◽  
V. P. Podkovka ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Structural Changes ◽  
Electron Pulses ◽  
Phase And Structural Changes
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